Seiko Cal. 0721 - 424

The 0721-424 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-5ff6114fa3dc]

Also known as: Helmet, Rally

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1981

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